disp: msm: sde: flush reg dma during encoder disable

Color features are disabled during encoder disable, but reg dma
flush is not triggered. This change does reg dma flush for the
features to be disabled during encoder disable.

Change-Id: Ia74d4c43ad7b699f0097b49d86ad59529c0b3230
Signed-off-by: Anjaneya Prasad Musunuri <[email protected]>
(cherry picked from commit 0d9d979c760c20e4c0ca0cb541b7290b6c6784c3)

msm/sde/sde_encoder.c

@@ -3874,6 +3874,7 @@ void sde_encoder_helper_phys_disable(struct sde_encoder_phys *phys_enc,
 	struct sde_ctl_flush_cfg cfg;
 	struct sde_hw_dsc *hw_dsc = NULL;
 	int i;
+	bool is_regdma_blocking = false, is_vid_mode = false;
 
 	ctl->ops.reset(ctl);
 	sde_encoder_helper_reset_mixers(phys_enc, NULL);
@@ -3950,6 +3951,12 @@ void sde_encoder_helper_phys_disable(struct sde_encoder_phys *phys_enc,
 	_trigger_encoder_hw_fences_override(phys_enc->sde_kms, ctl);
 
 	sde_crtc_disable_cp_features(sde_enc->base.crtc);
+
+	if (sde_encoder_check_curr_mode(&sde_enc->base, MSM_DISPLAY_VIDEO_MODE))
+		is_vid_mode = true;
+	is_regdma_blocking = (is_vid_mode ||
+			_sde_encoder_is_autorefresh_enabled(sde_enc));
+	ctl->ops.reg_dma_flush(ctl, is_regdma_blocking);
 	ctl->ops.get_pending_flush(ctl, &cfg);
 	SDE_EVT32(DRMID(phys_enc->parent), cfg.pending_flush_mask);
 	ctl->ops.trigger_flush(ctl);